Chapter 9 Section 5
Adding/Subtracting Rational
Functions
Algebra 2 Notes
May 26, 2009
Least Common Multiple
• What is a multiple?
• What is the LCM of 3 and 5?
• What is the LCM of 2 and 7?
LCM of Polynomials
• Finding the Least Common Multiple:
– Find all of the PRIME factors of each
expression
– Write each factor the most number of times it
occurs in either expressions
Adding/Subtracting
• Adding and Subtracting Rational
Expressions
– What needs to be the same in order to add or
subtract two or more fractions??
Practice!!
• Finish in Class Today:
– Page 517 #4, 7, 14, 15, 18, 21
• Homework #67
– Chapter 9 Review Worksheet
– (Test on Thursday!!)